Summary
Overview
A leading Customer Experience (CX) consulting partner engaged Tokyo Techies to conduct a White-Box Penetration Test on their core Digital Transformation (DX) platform. The primary objective was to proactively eliminate all security risks before the launch of a critical set of new features for the platform.
About the Client's Product
The platform is a highly effective, all-in-one digital solution designed specifically for Small and Medium-sized Enterprises (SMEs). It successfully unifies essential business functions; including website creation, email distribution, professional contact management, file sharing, and internal workflows into a single, consolidated tool. This integration significantly boosts operational efficiency and supports data utilization for thousands of users across various sectors.
About The Security Service: White-Box Penetration Testing
A White-Box Penetration Test is the most comprehensive and detailed security assessment available. Unlike a standard test, the client shares all non-public system information, including detailed system blueprints and program source code. Our security experts use this complete internal view to meticulously search for vulnerabilities and attempt a controlled intrusion, verifying the system's true security integrity.
The Case
The Challenge: New Features, New Risks
While the addition of new features is essential for maintaining customer satisfaction and market competitiveness, it invariably introduces new security risks. As a platform handling crucial customer and business data for numerous SMEs, the continuous security of the system was absolutely non-negotiable.
The company faced three key challenges:
- Identifying Hidden Risks in New Code: They required an urgent, thorough assessment to ensure the new features did not harbor vulnerabilities that could lead to customer data leaks before the public launch.
- Requiring an Objective External Audit: To fully guarantee product safety, they needed an objective, in-depth security analysis from external experts - a white-box assessment - that could surpass the scope of internal checks.
- Needing a Rapid and Actionable Response: To successfully meet the product release timeline, the assessment had to provide a report with specific, actionable fixes the development team could implement immediately.

The Results
Tokyo Techies Three-Phase Security Verification
Tokyo Techies conducted a rigorous White-Box Penetration Test to address the challenges. The project was structured into three distinct phases, ultimately resulting in the secure and timely release of the platform's new features.
Phase 1: System and Risk Area Identification
- System Analysis and Threat Modeling: We performed a detailed analysis of the system's blueprints and application configuration. This process was key to identifying potential risk areas and constructing a comprehensive threat model, which outlines possible attack scenarios.
Phase 2: In-Depth Assessment and Vulnerability Detection
- Execution of Multi-faceted Security Audit:
- Vulnerability Scanning: Automated tools were used to scan the entire system for known security issues.
- Source Code Review: Experts manually uncovered security weaknesses hidden deep within the program's blueprints (source code) that standard or black-box assessments might miss.
- Creation of a Detailed Report: For every issue detected, we created and submitted a detailed report that included the severity of the problem, verification code demonstrating a successful attack, and specific mitigation recommendations for the development team to implement immediately.
Phase 3: Confirmation of Fixes and Security Assurance
- Final Verification (Re-testing): After the development team completed the vulnerability fixes, we re-tested the system to confirm that the fixes were implemented correctly and that no other issues had arisen.
- Security Validation: We ultimately verified and validated that all vulnerabilities were closed and the system was strictly protected, guaranteeing the safe release of the new features.
This comprehensive approach ensured that all potential security risks in the new features of the platform were eliminated before public release, guaranteeing the safety and reliability that user companies can depend on. Tokyo Techies fulfilled the critical role of providing a "security guarantee" so the client could confidently launch their product to the market.
Do You Have Any Security Challenges?
System changes - whether adding new features, replacing legacy systems, or migrating to the cloud - always bring new security risks. If you feel overwhelmed, unsure where to begin, or find specialized security assessments challenging, you're not alone.
Tokyo Techies' dedicated cybersecurity expert team offers services like Penetration Testing and Vulnerability Assessments, tailored to fit your company’s needs and budget.
If your product or system has security concerns, or if you recognize the need for an external audit, our specialized expertise is a reliable solution.
Please feel free to contact us to discuss your current situation. We will propose the most suitable approach to secure your IT environment and protect your assets.



